The list is headed by free agent catcher Humberto Quintero, who is the top candidate to back-up Erik Kratz while Carlos Ruiz serves his 25-game suspension. Quintero will compete with prospects Tommy Joseph and Sebastian Valle for that spot.

Quintero, 33, hit .232 in 43 games with the Kansas City Royals last season.

For the first time since being traded to the Phillies back on July 29, 2010, Roy Oswalt stepped foot on the hill at Minute Maid Park.

But this time, he was walking to and from a different dugout.

Unlike many shut outs and gems tossed in this park, that wasn’t the story tonight for Oswalt. His former team jumped all over him as the Astros beat the Phils, 5-1.

Much like many nights, the Phils jumped out to a quick 1-0 lead in the 2nd inning when Pete Orr drove in Raul Ibanez. But that was all the offense the Phils could muster off Brett Myers and it gave the Astros offense a chance to get to Oswalt.

J.A. Happ was good and Michael Bourn’s only hit was the one that mattered. The lefty shut down his former team and Bourn’s solo shot in the sixth was key as the Astros beat the Phillies for the third straight time this series by a score of 3-2.

Happ went 6 1/3 innings while allowing two runs on five hits and two walks while striking out four. It was his fourth win of the season. Both he and Brett Myers were victorious over their former teams who drafted them and saw them go through their farm system.

Bourn’s solo home run in the sixth broke a 1-1 tie created by the Phillies in the fifth. Chris Johnson and Humberto Quintero both had two hits on the game with Quintero’s being the winner in the seventh. Hunter Pence homered in the fourth inning to break up Roy Halladay’s early perfect game.

Halladay was great in his start, going seven innings and allowing three runs on six hits while striking out six. His perfect game was broken up in the fourth while Happ’s no-hit bid was lost in the fifth off of Jayson Werth’s lead-off homer.

Werth homered in the fifth and Placido Polanco doubled in Doc in the sixth to provide the Phillies with their only offense of the night.

Both Atlanta and San Francisco lost today to keep the Phillies 2 1/2 games back in the division and tied with the Giants for the wild card spot. It was the ninth straight day the Phillies and Braves matched each other for wins and losses.